um ok Earendil and Elwing were indeed Elrond's father and mother.Galadriel and Celeborn had a daughter Celebrian i think and she married Elrond.

Well, I have alway been told by my dad(who has read the books and is an LotR fan), and friends, and a few people here on A-U that Elrond is the son of Galadriel and Celeborn. But this gives me doudtes. Unless Celeborn is Earendil, and Elwing is Galadriel... but if so, why different names? I've pondered this alot... and I can't figure this out... can someone help me? Who are Elrond's sire and dam(father and mother)?

And Elrond was the banner bearer/ Herald of Gil Galad and his second in command. He was the son of Earendil and Elwing, but he was Galadriel and Celebrons son in law. Celebrian took a wound from a run in with the orcs and it wouldnt heal, so she went to the undying lands.That may have confused you. But I reckon Aerandir will find something wrong with this statement so watch this space.

"I was the herald of Gil-galad and marched with his host. I was at the Battle of Dagorlad before the Black Gate of Mordor, where we had the mastery: for the Spear of Gil-galad and the Sword of Elendil, Aiglos and Narsil, none could withstand. I beheld the last combat on the slopes of Orodruin, where Gil-galad died, and Elendil fel, and Narsil broke beneath him; but Sauron himself was overthrown, and Isildur cut the Ring from his hand with the hilt-shard of his father's sword, and took it for his own.".......

....."Isildur took it, as should not have been. It should have been cast then into Orodruin's fire nigh at hand where it was made. But few marked what Isildur did. He alone stood by his father in that last mortal contest; and by Gil-galad only Círdan stood, and I."